// Get the filter object and properties
mlt_producer producer = mlt_frame_pop_service( this );
+ int index = ( int )mlt_frame_pop_service( this );
mlt_properties properties = MLT_PRODUCER_PROPERTIES( producer );
// Frame properties objects
mlt_properties frame_properties = MLT_FRAME_PROPERTIES( this );
mlt_frame first_frame = mlt_properties_get_data( properties, "first_frame", NULL );
- if ( first_frame == NULL )
+
+ // Get producer parameters
+ int strobe = mlt_properties_get_int( properties, "strobe" );
+ int freeze = mlt_properties_get_int( properties, "freeze" );
+ int freeze_after = mlt_properties_get_int( properties, "freeze_after" );
+ int freeze_before = mlt_properties_get_int( properties, "freeze_before" );
+
+ // Determine the position
+ mlt_position first_position = (first_frame != NULL) ? mlt_frame_get_position( first_frame ) : -1;
+ mlt_position need_first = freeze;
+
+ if ( !freeze || freeze_after || freeze_before )
{
- int need_first = mlt_properties_get_int( properties, "_need_first" );
- int index = mlt_properties_get_int( properties, "_index" );
+ double prod_speed = mlt_properties_get_double( properties, "_speed" );
+ double actual_position = prod_speed * (double) mlt_producer_position( producer );
- // Get the real producer
+ if ( mlt_properties_get_int( properties, "reverse" ) )
+ actual_position = mlt_producer_get_playtime( producer ) - actual_position;
+
+ if ( strobe < 2 )
+ {
+ need_first = floor( actual_position );
+ }
+ else
+ {
+ // Strobe effect wanted, calculate frame position
+ need_first = floor( actual_position );
+ need_first -= need_first % strobe;
+ }
+ if ( freeze )
+ {
+ if ( freeze_after && need_first > freeze ) need_first = freeze;
+ else if ( freeze_before && need_first < freeze ) need_first = freeze;
+ }
+ }
+
+ if ( need_first != first_position )
+ {
+ // Bust the cached frame
+ first_frame = NULL;
+ mlt_properties_set_data( properties, "first_frame", NULL, 0, NULL, NULL );
+ }
+
+ // Get the cached frame
+ if ( first_frame == NULL )
+ {
+ // Get the frame to cache from the real producer
mlt_producer real_producer = mlt_properties_get_data( properties, "producer", NULL );
// Seek the producer to the correct place
}
mlt_properties first_frame_properties = MLT_FRAME_PROPERTIES( first_frame );
+ // Determine output buffer size
*width = mlt_properties_get_int( frame_properties, "width" );
*height = mlt_properties_get_int( frame_properties, "height" );
-
int size;
switch ( *format )
{
break;
}
+ // Get output buffer
uint8_t *output = mlt_properties_get_data( properties, "output_buffer", NULL );
-
if( output == NULL )
{
output = mlt_pool_alloc( size );
mlt_properties_set_data( properties, "output_buffer", output, size, mlt_pool_release, NULL );
}
+ // Which frames are buffered?
uint8_t *first_image = mlt_properties_get_data( first_frame_properties, "image", NULL );
-
- // which frames are buffered?
-
- int error = 0;
-
if( first_image == NULL )
{
mlt_properties props = MLT_FRAME_PROPERTIES( this );
mlt_properties_set_double( test_properties, "consumer_aspect_ratio", mlt_properties_get_double( props, "consumer_aspect_ratio" ) );
mlt_properties_set( test_properties, "rescale.interp", mlt_properties_get( props, "rescale.interp" ) );
- error = mlt_frame_get_image( first_frame, &first_image, format, width, height, writable );
+ int error = mlt_frame_get_image( first_frame, &first_image, format, width, height, writable );
- if( error != 0 ) {
+ if ( error != 0 ) {
fprintf(stderr, "first_image == NULL get image died\n");
return error;
}
// Start with a base image
memcpy( output, first_image, size );
+ // Set the output image
*image = output;
mlt_properties_set_data( frame_properties, "image", output, size, NULL, NULL );
{
// Construct a new frame
*frame = mlt_frame_init( MLT_PRODUCER_SERVICE( this ) );
- mlt_properties properties = MLT_PRODUCER_PROPERTIES( this );
-
if( frame != NULL )
{
- mlt_frame first_frame = mlt_properties_get_data( properties, "first_frame", NULL );
-
- mlt_position first_position = (first_frame != NULL) ? mlt_frame_get_position( first_frame ) : -1;
-
- // get properties
- int strobe = mlt_properties_get_int( properties, "strobe");
- int freeze = mlt_properties_get_int( properties, "freeze");
- int freeze_after = mlt_properties_get_int( properties, "freeze_after");
- int freeze_before = mlt_properties_get_int( properties, "freeze_before");
-
- mlt_position need_first;
-
- if (!freeze || freeze_after || freeze_before) {
- double prod_speed = mlt_properties_get_double( properties, "_speed");
- double actual_position = prod_speed * (double) mlt_producer_position( this );
-
- if (mlt_properties_get_int( properties, "reverse")) actual_position = mlt_producer_get_playtime(this) - actual_position;
-
- if (strobe < 2)
- {
- need_first = floor( actual_position );
- }
- else
- {
- // Strobe effect wanted, calculate frame position
- need_first = floor( actual_position );
- need_first -= need_first%strobe;
- }
- if (freeze)
- {
- if (freeze_after && need_first > freeze) need_first = freeze;
- else if (freeze_before && need_first < freeze) need_first = freeze;
- }
- }
- else need_first = freeze;
-
- if ( need_first != first_position )
- {
- // Bust the cached frame
- mlt_properties_set_data( properties, "first_frame", NULL, 0, NULL, NULL );
- }
- mlt_properties_set_int( properties, "_need_first", need_first );
- mlt_properties_set_int( properties, "_index", index );
-
// Stack the producer and producer's get image
+ mlt_frame_push_service( *frame, (void*) index );
mlt_frame_push_service( *frame, this );
mlt_frame_push_service( *frame, framebuffer_get_image );